MESON Chess Problem Database

Problem Display
PID: 234866 (8/1B6/4p3/4PkB1/7K/8/8/Q7 w - - 0 1)

Groeneveld, Cornelis

Het Belgisch Schaakbord (L'Echiquier Belge), 2004

8/1B6/4p3/4PkB1/7K/8/8/Q7

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • 1...Kxe5
        • 2.Qf4#
        • 2.Qc5#
      • 1...Kg6!
    • 1.Qf1+?
      • 1...Kxe5
        • 2.Qf4#
      • 1...Kg6!
    • 1.Qg1?
      • 1...Kxe5
        • 2.Qc5#
      • 1...Kg6!
    • 1.Qa3?
      • 1...Kxe5
        • 2.Qc5#
      • 1...Kg6!
    • 1.Qa4?
      • threat
        • 2.Qe4#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Kg6!
  • Keys
    • 1.Qa7!
      • 1...Kxe5
        • 2.Qc5#
      • 1...Kg6
        • 2.Be4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(C)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT,XP(C)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(A)
      • K(a);S_FLIGHT::B(E)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).